2 * Copyright (C) 2018 - Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License, version 2 only, as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc., 51
15 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include <common/common.h>
23 #include <common/sessiond-comm/relayd.h>
25 #include <common/compat/endian.h>
26 #include <common/compat/string.h>
27 #include <lttng/constant.h>
32 int cmd_create_session_2_11(const struct lttng_buffer_view
*payload
,
33 char *session_name
, char *hostname
, char *base_path
,
34 uint32_t *live_timer
, bool *snapshot
,
35 uint64_t *id_sessiond
, lttng_uuid sessiond_uuid
,
36 bool *has_current_chunk
, uint64_t *current_chunk_id
,
37 time_t *creation_time
,
38 bool *session_name_contains_creation_time
)
41 struct lttcomm_relayd_create_session_2_11 header
;
42 size_t header_len
, received_names_size
, offset
;
43 struct lttng_buffer_view session_name_view
;
44 struct lttng_buffer_view hostname_view
;
45 struct lttng_buffer_view base_path_view
;
47 header_len
= sizeof(header
);
49 if (payload
->size
< header_len
) {
50 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
51 header_len
, payload
->size
);
55 memcpy(&header
, payload
->data
, header_len
);
57 header
.session_name_len
= be32toh(header
.session_name_len
);
58 header
.hostname_len
= be32toh(header
.hostname_len
);
59 header
.base_path_len
= be32toh(header
.base_path_len
);
60 header
.live_timer
= be32toh(header
.live_timer
);
61 header
.current_chunk_id
.value
= be64toh(header
.current_chunk_id
.value
);
62 header
.current_chunk_id
.is_set
= !!header
.current_chunk_id
.is_set
;
63 header
.creation_time
= be64toh(header
.creation_time
);
65 lttng_uuid_copy(sessiond_uuid
, header
.sessiond_uuid
);
67 received_names_size
= header
.session_name_len
+ header
.hostname_len
+
69 if (payload
->size
< header_len
+ received_names_size
) {
70 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
71 header_len
+ received_names_size
, payload
->size
);
76 /* Validate length against defined constant. */
77 if (header
.session_name_len
> LTTNG_NAME_MAX
) {
79 ERR("Length of session name (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.session_name_len
, LTTNG_NAME_MAX
);
81 } else if (header
.session_name_len
== 0) {
83 ERR("Illegal session name length of 0 received");
86 if (header
.hostname_len
> LTTNG_HOST_NAME_MAX
) {
88 ERR("Length of hostname (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.hostname_len
, LTTNG_HOST_NAME_MAX
);
91 if (header
.base_path_len
> LTTNG_PATH_MAX
) {
93 ERR("Length of base_path (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.base_path_len
, PATH_MAX
);
98 session_name_view
= lttng_buffer_view_from_view(payload
, offset
,
99 header
.session_name_len
);
100 offset
+= header
.session_name_len
;
101 hostname_view
= lttng_buffer_view_from_view(payload
,
102 offset
, header
.hostname_len
);
103 offset
+= header
.hostname_len
;
104 base_path_view
= lttng_buffer_view_from_view(payload
,
105 offset
, header
.base_path_len
);
107 /* Validate that names are NULL terminated. */
108 if (session_name_view
.data
[session_name_view
.size
- 1] != '\0') {
109 ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)");
114 if (hostname_view
.data
[hostname_view
.size
- 1] != '\0') {
115 ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)");
120 if (base_path_view
.size
!= 0 &&
121 base_path_view
.data
[base_path_view
.size
- 1] != '\0') {
122 ERR("cmd_create_session_2_11 base_path is invalid (not NULL terminated)");
128 * Length and null-termination check are already performed.
129 * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected.
131 strcpy(session_name
, session_name_view
.data
);
132 strcpy(hostname
, hostname_view
.data
);
133 strcpy(base_path
, base_path_view
.size
? base_path_view
.data
: "");
135 *live_timer
= header
.live_timer
;
136 *snapshot
= !!header
.snapshot
;
137 *current_chunk_id
= header
.current_chunk_id
.value
;
138 *has_current_chunk
= header
.current_chunk_id
.is_set
;
139 *creation_time
= (time_t) header
.creation_time
;
140 *session_name_contains_creation_time
=
141 header
.session_name_contains_creation_time
;
150 * cmd_recv_stream_2_11 allocates path_name and channel_name.
152 int cmd_recv_stream_2_11(const struct lttng_buffer_view
*payload
,
153 char **ret_path_name
, char **ret_channel_name
,
154 uint64_t *tracefile_size
, uint64_t *tracefile_count
,
155 uint64_t *trace_archive_id
)
158 struct lttcomm_relayd_add_stream_2_11 header
;
159 size_t header_len
, received_names_size
;
160 struct lttng_buffer_view channel_name_view
;
161 struct lttng_buffer_view pathname_view
;
162 char *path_name
= NULL
;
163 char *channel_name
= NULL
;
165 header_len
= sizeof(header
);
167 if (payload
->size
< header_len
) {
168 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
169 header_len
, payload
->size
);
173 memcpy(&header
, payload
->data
, header_len
);
175 header
.channel_name_len
= be32toh(header
.channel_name_len
);
176 header
.pathname_len
= be32toh(header
.pathname_len
);
177 header
.tracefile_size
= be64toh(header
.tracefile_size
);
178 header
.tracefile_count
= be64toh(header
.tracefile_count
);
179 header
.trace_chunk_id
= be64toh(header
.trace_chunk_id
);
181 received_names_size
= header
.channel_name_len
+ header
.pathname_len
;
182 if (payload
->size
< header_len
+ received_names_size
) {
183 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
184 header_len
+ received_names_size
, payload
->size
);
189 /* Validate length against defined constant. */
190 if (header
.channel_name_len
> DEFAULT_STREAM_NAME_LEN
) {
192 ERR("Channel name too long");
195 if (header
.pathname_len
> LTTNG_NAME_MAX
) {
197 ERR("Pathname too long");
201 /* Validate that names are (NULL terminated. */
202 channel_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
203 header
.channel_name_len
);
204 pathname_view
= lttng_buffer_view_from_view(payload
,
205 header_len
+ header
.channel_name_len
, header
.pathname_len
);
207 if (channel_name_view
.data
[channel_name_view
.size
- 1] != '\0') {
208 ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)");
213 if (pathname_view
.data
[pathname_view
.size
- 1] != '\0') {
214 ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)");
219 channel_name
= strdup(channel_name_view
.data
);
222 PERROR("Channel name allocation");
226 path_name
= strdup(pathname_view
.data
);
228 PERROR("Path name allocation");
233 *tracefile_size
= header
.tracefile_size
;
234 *tracefile_count
= header
.tracefile_count
;
235 *trace_archive_id
= header
.trace_chunk_id
;
236 *ret_path_name
= path_name
;
237 *ret_channel_name
= channel_name
;
238 /* Move ownership to caller */